Significant magnitude 5.1 earthquake 59 km northwest of Miyakojima, Japan

The German Research Centre for Geosciences (GFZ) reported a magnitude 5.1 quake in Japan near Miyakojima, Miyakojima Shi, Okinawa, only 9 minutes ago. The earthquake hit in the evening on Saturday, February 28th, 2026, at 9:57 pm local time at a shallow depth of 10. km. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from the citizen-seismograph network of RaspberryShake which listed the quake at magnitude 5.1 as well.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Hirara (pop. 34,400) located 58 km from the epicenter, Miyakojima (pop. 54,900) 59 km away, Tarama (pop. 1,200) 62 km away, and Ishigaki (pop. 47,600) 122 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you’re in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.


Earthquake data:
Date & time: Feb 28, 2026 09:57 pm (GMT +9) local time (28 Feb 2026 12:57 GMT)
Magnitude: 5.1
Depth: 10.00 km
Epicenter latitude / longitude: 25.19°N / 124.92°E (Okinawa, Japan)
Primary data source: GFZ
https://www.volcanodiscovery.com/earthquake/news/296263/Significant-magnitude-51-earthquake-59-km-northwest-of-Miyakojima-Japan.html